APA (7th ed.) Citation

Catapult, I. (1999). Microsoft excel 2000 step by step. Microsoft press.

Chicago Style (17th ed.) Citation

Catapult, Inc. Microsoft Excel 2000 Step by Step. Redmond, wash: Microsoft press, 1999.

MLA (9th ed.) Citation

Catapult, Inc. Microsoft Excel 2000 Step by Step. Microsoft press, 1999.